demarest



2 Sheets-Sheet 1.

(No Model.)

J. DEMARE-ST.

OISTERN FOR WATER GLOSETS.

N0. 292,160. Patented Jan. 22, 1884.

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N. PETERS. PllulmLillwgrzqvhcr, Washington. a c.

(No Mod e l.) g f 2 Sheet -Sheet 2.

v J. DEMAREST.

HIS-TEEN FOR WATER omsmrs.

No. 292,1 0. I Patented Jan. .22, 1884.

JOHN DEMAREST, OF NEWV' YORK, N. Y., ASSIGNOR TO THE J. L. MOTT I NITED STAT-ES:

TRON \VORKS, OF SAME PLACE.

CISTERN FORWATER-CLOSETST SPECIFICATION forming part of Letters PatentNo. 292,160; dated January 1884.

Application filed April 28, 1983. (No model.)

I aZZ whom, it may concern:

Be it known that I, JOHN DEMARESI, of the city and. State of New York, have invented an Improvement in Oisterns for Water-Closets, of which the following is a specification.

In many cities water-closet cisterns. are required, and they have to be made in such a manner that the watercannot be allowed to run to waste. \Vith these cisterns the closet pull is sometimes operated suddenly, and there is not sufficient water supplied to wash out the basin thoroughly. This is especially the case with closets for hotels and public buildings, where the pull is liable to be suddenly jerked and then dropped.

My invention is made for the purpose of I insuring a reasonable quantity of waterfor flushing the closet, and for preventing the supply-box of the cistern becoming exhausted in consequence of the pull being operated in rapid succession.

In the drawings, Figure l is a plan of the cistern, and Fig. 2 is avertical section through the valves, the lever being in elevation.

The cistern is a cast-iron box, having sides a a, ends b, and bottom 0, cast in one piece.

The dam d is also cast with the rest of the cis tern, and there is a trunk, 0, running along above the bottom in one of the angles between one of the sides a and the bottom, and this trunk opens at the end'through the dam d. There is an opening cast in the top of this trunk, into which is secured abrass ring, (0*, having an inclined inner surface forming a seat, 7, for the valve f. This valvef has a guide, 2, within the seat, a ring of rubber, as at 3, and a bail, 4, through which passes the lifter-rod 71, having a head or nut below the bail, so that it may slide freely through the bail; but the nut will lift the bail and valve when the lifter is moved sufficiently for the purpose. at'l within the cistern. The outer end is connected by a chain or wire, m, to the closetpull, and the other end of the lever is is provided with a weight, n.

The lifter-rod h terminates at the upper end with an eye, that passes over a stud at the side of the lever 70, and is confined by the head of a screw that is screwed into the said stud.

. service-box.

There is a lever, k, that is pivoted ter passes through the trunk 0 into the compartment R and stands at the same level. The normal condition of the cistern is shown in Fig. 2, the valvef being open andthe water at a uniform level.

Beneath the compartment R there is a service-box, S, and in the bottom of the servicebox there is an opening, with a pipe, T, leading to the water-closet.

The tubular dam it rises above the bottom of the service-box, and it is perforated at 6 with one or more holes near the bottom of the Directly above'this tubular dam a there is an opening in the bottom of the cistern for the reception of a large brass ring, if, having a flaring interior surface forming a rubber ring, 20, in a groove around the metal portion, and there is a bail, to, rising above the valve, through which bail the lifter-rod .1: passes, and there is a nut on said rod below 'the top of the bail, and the upper end of the valve lifter-rod is made as an eye to set over a stud upon the weight a, and it is held in place by a screw.

;The parts are adjusted so that when the closet-pull is operated the lever is moved,

and the valve flowered upon its seat before the valve 1; is raised; hence there cannot be any waste of water, even if the closet-pull was purposely or accidentally raised. As soon as the valve f touches its seat, the valve 1) commences to lift, and the further movement of the lever 70 causes the valve 22 to open Wide, and the water rushes out suddenly through the large valve-seat and fills the service-box. At the same time it runs through the top of the tubular dam to directly to the closet. The rush of water is so sudden and copious that, even if the lever is is allowed to fall and the valve '0 to close,'there will be considerable water passing into the closet; but if the lever is held until the compartment R of the cistern becomes empty, no more water will pass to the closet until the lever is released, the valve 1: closed, and the valvef opened. The water will then rush through the valve-scat 7 and trunk and fill up the compartment It to the same level as the compartment 1, and the water will con tinue to rise in both compartments of the cis tern as it is supplied by the ball-valve.

If the closet is used very quickly by different persons, or the pull operated more than once by the same person at short intervals,- there will always be a small flushing action by the water, and under all circumstances the water will continue to run from the servicebox after the valve 0 closes, because the water which is below the top of the tubular dam will pass down to the closet through the opening; 6 in the dam a, and cause the necessary accumulation of water in the basin of the closet to exclude smell and keep the closet in condition for the next use of the same.

I am aware that the separate parts employed by me are not new, and that cisterns have been made with two valves actuated alternately by one lever to admit water from one compartment to the other.

I claim as my invention- 1. The lever is, having studs cast upon the sides thereof, in combination with the lifterrods h and m, terminating at their upper ends as eyes, and the screws retaining the eyes of the lifter-rods upon the studs, substantially as specified.

2. The lever 7., having studs cast upon the sides thereof, in combination with the lifterrods h and m, terminating at their upper ends as eyes. the screws retaining the eyes up on the studs, the conical valve-seats, and the valves having rubber rings around them, and each provided with a bail through which the rod passes frcel y, and provided with a nut or head whereby the valves may be lifted, but are free to rest tightly within the conical seats when dropped, substantially as specified.

Signed by me this 25th day of April, A. D. 1883.

.'I( )1 IN mm AREST.

\Vitnesses:

GEO. T. PIXcKNnY, \VILLIAM G. Mom. 

